linux-kernel - Re: [PATCH v3 01/13] kexec: consolidate kexec and crash options into kernel/Kconfig.kexec

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Message-ID: <ZJm6eS6LiSApYVTC@shell.armlinux.org.uk>
Date:   Mon, 26 Jun 2023 17:19:05 +0100
From:   "Russell King (Oracle)" <linux@...linux.org.uk>
To:     Eric DeVolder <eric.devolder@...cle.com>
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Subject: Re: [PATCH v3 01/13] kexec: consolidate kexec and crash options into
 kernel/Kconfig.kexec

On Mon, Jun 26, 2023 at 12:13:20PM -0400, Eric DeVolder wrote:
> +config KEXEC
> +	bool "Enable kexec system call"
> +	default ARCH_DEFAULT_KEXEC
> +	depends on ARCH_SUPPORTS_KEXEC
> +	select KEXEC_CORE
> +	help
> +	  kexec is a system call that implements the ability to shutdown your
> +	  current kernel, and to start another kernel. It is like a reboot
> +	  but it is independent of the system firmware. And like a reboot
> +	  you can start any kernel with it, not just Linux.
> +
> +	  The name comes from the similarity to the exec system call.
> +
> +	  It is an ongoing process to be certain the hardware in a machine
> +	  is properly shutdown, so do not be surprised if this code does not
> +	  initially work for you. As of this writing the exact hardware
> +	  interface is strongly in flux, so no good recommendation can be
> +	  made.

Is this last paragraph still true? Is the hardware interface still
"strongly in flux" ?

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
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